Nonbursting radiator tube



Mar. 13, 1923.

1,448,075 v. R. MELVILLE particular object of' Patented Mar. 13, 1923.

UNITED sures VICTOR R. MELVILLE, OF LA GRANDE, OREGON.

NONBURSTING RADIATOB mujm.

Application filed May 27,

To all whom it may oonm:

Be it known that I, VICTOR R. MELVILLE, a citizen of the United States, residing at La Grande, in the county of Union, State of Oregon, have invented certain new and useful mprovements in Nonbursting Radiator Tubes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful mprovements in water pipes and particularly to radiator pipes.

The rincipal object of the invention is to provide a pipe of the character named which will not be subject to bursting when the water therein becomes frozen.

Another object is to provide a novel and improved pipe of this character which will readily radiate heat,` and which will easily and quickly expand under the influence of the pressure of ice formed therein by freezther objects and advantages will be apparent from the following description when taken in connection with the-accompanying drawing.

In the drawing:

Figure 1 is an elevation of a radiator equipped with pipes made in accordance with the invention.

Figure 2 is a vertical longitudinal central section on the line 2-2 of Figure 1.

Figure 3 is a horizontal section on the line 3-3 of Figure 2, through a number of the pipes.

Figure 4 is an elevation of a modification in which the pipe has s'piral corrugations.`

Figure 5 is a perspective View of a modification in which the pipe has broken lengths of longitudnal corrugations.

The vertical pipes used in automobile radiators are generally circular or elliptical in cross section, and when the water freezes in such pipes the expansion is too great tor the pipes. with the result that the pipes burst. This is annoying, as well as expensive, as the pipes must be repair-ed or replaced. It is the the present inventicn to provide a radiator pipe which will readily expand with the pressure exerted by the freezing or :t'rozen water therein, and whereby the pipe will be prevented from bursting; The particular manner in which this is ac- 92o. Serial m. 384585.

complished is to form thepipe with a ceni tral passage whose diameter is practically that of the 'ordinary pipe of this character,

but with longitudinal ribs or corrugations,

which provide an excess' of metal which will permit quick expansion under outward pressure from within the pipe. struction the pipe is prevented from bursting, and the life of the pip'e greatly pro-`.

longed. r

Referrng particularly to the acconipanying drawing, there is shown a radiator' equipped with the pipes, the radiator being represented by the numeral 10 and the pipes by the numeral 11. Each of the pipes is 'li'ormed with' a plurality of longitudinal corrugations l2, eXtending throughout the entire length of the pipe, so thatthe expan-` sive action from within will be taken up by the ppe at all points along its length. Here- By this contofore,pipes which have been provided with corrugations, had such corrugations terminating short of the ends of the pipe, with the result that the ends of the pipe were subject to bursting romthe expanson from` within. By producing the corrugations through both ends of the pipe,-the expensive action of the water within will be taken up throughout the length ofthe pipe. Furthermore, the ribs of' the eorrugations form radiating fins, which Will serve to give ofl' eX- cessive heat. i

The corrugations may eXtend 'straight and continuously throughout the length of 'the pipe, or they-may be formed in sections', as. shown in h guret. If desired, the corruga-.

tions maybe formed spirally on the pipe, as 7 'shown in Figure 5. H-owever, they are formed, they must extend throughthe ends of the pipe to produce the desircd and ef:

fective result j What is, claimed is: r A radiato' tube consisting of a hollow body cruci'forned in cross section,` each of the arms of the cruciform being divided into `longitud inal sections arranged in staggered relation to those oi' the other arms andbej ing closed at their ends. j

In testmony whereof, in the presence of two .witnesses.

Witnesses: i a

J NO. S. HODGIN, WM. E. HARRIS.

I aflix my signature, i

VICTOR 'a MELVILLE 

